baber/WOPTO huggingface dataset:
Patent GB-1347212-A (GB)
Title: Polyvinylalcohol solid bodies and compositions for the production thereof
IPC: D21H17/06
Filed: 1972-02-14
Abstract: 1347212 Polyvinyl alcohol/amylose compositions K HAYASHIBARA 14 Feb 1972 [15  Feb 1971] 6742/72 Headings C3P and C3U A composition which is either a solid product or an aqueous solution thereof comprises, in terms of its solid constituents, an intimate mixture of polyvinylalcohol and amylose and/or amylitol, the amylose and/or amylitol having a degree of polymerization of 10-50 and being present in an amount which is 5-60% of the weight of polyvinyl alcohol. A plasticizer which is a polyhydric alcohol such as glycerol, propylene glycol, sorbitol, maltitol, trimethylol propane and diethylene glycol, may also be present. A preferred plasticizer is a mixture of maltitol and glycerol and/or propylene glycol. The polyvinyl alcohol may be partially or completely replaced by a water soluble derivative thereof such as the acetal. The solid product may be for example, a film (which may be on a support, from which it is strippable) or fibre, the latter being optionally treated with formaldehyde to increase the water resistance. The aqueous solutions are used as sizes for textile materials especially paper, when they preferably have a solids content of 3-6 wt. per cent. The amylose having the specified low D.P. may be prepared by the enzymatic hydrolysis of starch using an enzyme having isoamylase activity, and separating from the amylose formed, the fraction with a D.P. of from 10-50. Examples of suitable enzymes are pullulanase and Pseudomonas amyloderamosa (ATCC 21262). The amylitol may be produced by hydrogenation of amylose with Raney (Registered Trade Mark) nickel, to produce pure amylitol or an amylose/amylitol mixture, depending on the degree of hydrogenation.
Patent GB-713984-A (GB)
Title: New sulphur containing compounds
Inventor: WOOD DOUGLAS GREEN
Filed: 1952-03-17
Abstract: The invention comprises compounds of the formula <FORM:0713984/IV (b)/1> in which the phenyl radical X is unsubstituted or bears one or more chlorine atoms and the phenyl radical Y bears one or more chlorine atoms, and the preparation of such compounds by condensing a benzyl halide <FORM:0713984/IV (b)/2> in the presence of an alkaline condensing agent.  In examples (1) p-chlorobenzyl p-chlorophenyl sulphide is made by heating p-chlorophenylthiol, p-chlorobenzyl chloride and sodium ethoxide in absolute alcohol; (2) p-chlorobenzyl phenyl sulphide is made from phenylthiol, p-chlorobenzyl chloride and sodium ethoxide in alcohol; (4) o- and m-chlorobenzyl p-chlorophenyl sulphide are similarly made from o- or m-chlorobenzyl chloride and p-chlorophenylthiol; (9) p-chlorophenyl-2,4-dichlorobenzyl sulphide is made by condensing p-chlorophenylthiol with 2,4 - dichlorobenzyl chloride; and (10) p-chlorobenzyl-2,4,5-trichlorophenyl sulphide is made by condensing p-chlorobenzyl chloride with 2,4,5-trichlorophenylthiol.ALSO:Acaridical compositions comprise a chlorobenzyl phenyl sulphide of the formula <FORM:0713984/VI/1> in which the phenyl radical X is unsubstituted or bears one or more chlorine atoms and the phenyl radical Y bears one or more chlorine atoms (see Group IV(b)), together with a carrier or diluent with or without a dispersing agent.  The compounds may also be contained in a smoke generating composition, aerosol or mist propellant.  As examples, the following compositions are given (3) p-chlorobenzyl p-chlorophenyl sulphide, xylene and a dispersing agent, (5) p-chlorobenzyl p-chlorophenyl sulphide, a dispersing agent, kaolin and exsiccated magnesium sulphate, (6) p-chlorobenzyl p-chlorophenyl sulphide dissolved in a hydrocarbon solvent and an emulsifying agent, (7) p-chlorobenzyl phenyl sulphide dissolved in xylene and an emulsifying agent, and (8) p-chlorobenzyl p-chlorophenyl sulphide dissolved in a mixture of cyclohexanone and tea-seed oil.
Patent GB-1144628-A (GB)
Title: Improvements in umbrellas
IPC: A45B9/02
Filed: 1968-02-12
Abstract: 1,144,628. Umbrella handles. BREMSHEY & CO. 12 Feb., 1968 [29 March, 1967], No. 6874/68. Heading A4P. An umbrella has a handle of synthetic plastics material, comprising a shank 1 with a smooth axial bore 4 for holding the umbrella stick 5, and an extending sleeve 2 surrounding the lower end of the stick, the end face 3 of the shank having an integral bridge piece 13 forming an eye 15 for attachment of a carrying loop. The stick may either be a force fit in the axial bore, or may be retained by a doubly pointed pin 8 extending through a cross bore in the handle and stick, or by a screw in a threaded such cross bore.
Patent GB-695735-A (GB)
Title: Improvements in or relating to catalysts for the polymerization of olefins
IPC: C07C2/18
Filed: 1951-03-22
Abstract: Hydrocarbons boiling in the motor fuel range are produced by the polymerization of olefins in the presence of a catalyst prepared by impregnating a solid carrier with a phosphoric acid, drying at 375-425 DEG  F., and calcining at above 600 DEG  F. (see Group III). The feed may contain 30-50 per cent olefins and may be reacted at 300-900 DEG  F. and 50-1500 lb. per sq. in. gauge.  In a process of the slurry type, reaction products are separated in a slurry fractionation zone and a catalyst slurry is returned to the reactor. In a fluidized process, the product gases are contacted with a hydrocarbon quench liquid to remove catalyst particles.  A fixed bed process is also described in which gases containing C3 and C4 olefins are treated to remove hydrogen sulphide and mercaptans, and passed through catalyst in water-cooled tubes in two reactors; before fractionation, the reaction products are treated to separate propane and lower boiling hydrocarbons, and also to separate butane.  To prevent dehydration of the catalyst, water may be injected into the catalyst bed, or the feed may be contacted with water. Specifications 437,188; 463,272, 463,864 [both in Group III] and 690,387 are referred to.ALSO:A catalyst of improved strength, for the polymerization of olefins to hydrocarbons boiling in the motor fuel range (see Group IV(b)), is prepared by impregnating a solid carrier, e.g. silica gel or kieselguhr, with a phosphoric acid, drying at a temperature between 375 DEG  and 425 DEG F, preferably for 24-36 hours, and calcining at a temperature above 600 DEG F, preferably for 1-4 hours. Orthophosphoric, pyrophosphoric, permonophosphoric, or perdiphosphoric acid may be used.  The catalyst may be further improved by heating the carrier before impregnation to a temperature between 250 DEG  and 400 DEG F and then to a temperature between 400 DEG  and 1,400 DEG F (preferably 800 DEG -1,250 DEG F).  Copper or nickel salts, e.g. the phosphates, nitrates, sulphates, chlorides, fluorides or oxides in an amount of 1-5 per cent may be included in the catalyst, for example, as described in Specification 690,387. Specifications 437,188, 463,272 and 463,864 also are referred to.
Patent GB-963010-A (GB)
Title: Improvements in or relating to bobbin cradles
Inventor: CARTER BEN RICHARD
IPC: B21C47/18
Filed: 1960-02-27
Abstract: 963,010. Coiling; unreeling. B. & F. CARTER CO. Ltd. July 15, 1960 [Feb. 27, 1960], No. 6945/60. Heading B3E. [Also in Division D1] A U-shaped bobbin cradle 11, 11a, 11b, that is rotatable about an axis 34 extending transversely of the bobbin axis, includes a drum 24 that is rotatable against the resistance of a friction band 25, the wire from the bobbin 13 being wound around the drum to develop a tension in the wire as it is drawn from the bobbin. The wire from the bobbin passes through eyelets 32, 33 on the carrier, these eyelets guiding the thread to and from a channel 31 in the drum 24. One end of the friction band 25 passes through a shaft 27 that can be turned against the resistance of a locking spring 28 to adjust the tension in the band. A weak compression spring 19 presses a plate 17 against the periphery 18 of the spool to maintain its supporting shaft 16 in a slot 12b. The bobbin and its cradle may form part of a machine for applying wire reinforcement to the outer surface of a flexible hose. Specification 935,837 is referred to.
Patent GB-610345-A (GB)
Title: Improvements in or relating to adhesive compositions
IPC: C08L9/02
Filed: 1946-03-06
Abstract: An adhesive composition, particularly for attaching soles and uppers of footwear, comprises a copolymer of butadiene and acrylonitrile, a volatile organic solvent, a copolymer of vinyl chloride and vinyl acetate in which the] former predominates and the vinyl acetate content is more than 5 per cent by weight, and a phenol-aldehyde resin.  The solvent may be methyl ethyl ketone, acetone or ethyl acetate.  The preferred phenol-aldehyde resin is that obtained from phenol and formaldehyde, but other phenols, and acetaldehyde or propionaldehyde may be used.  The preferred vinyl chloride-vinyl acetate copolymer has 88-90 per cent of the former component. Sulphur, zinc oxide, "butyl eight" and fillers such as clay, calcium silicate and finely divided mica may also be added.  Specification 569,666 is referred to.ALSO:An adhesive composition comprises a copolymer of butadiene and acrylonitrile, a volatile organic solvent, a copolymer of vinyl chloride and vinyl acetate in which the former predominates and the vinyl acetate content is more than 5 per cent by weight, and a phenol-aldehyde resin.  The solvent may be methyl ethyl ketone, acetone or ethyl acetate.  The preferred phenol-aldehyde but resin is that obtained from phenol and formaldehyde, other phenols, and acetaldehyde or propionaldehyde may be used.  The preferred vinyl chloride-vinyl acetate copolymer has 88-90 per cent of the former component.  Sulphur, zinc oxide, "butyl eight" and fillers such as clay, calcium silicate and finely divided mica may also be added. Specification 569,666 is referred to.
Patent GB-1043053-A (GB)
Title: Method of isolating 5'-guanylic acid
IPC: C07H19/20
Filed: 1964-02-19
Abstract: 51-Guanylic acid is isolated from a solution containing it by adjusting the pH of the solution to a value within the range 1 to 5 inclusive and recovering it in the form of a mono-alkali metal salt or a mixture of a mono-alkali metal salt and the free acid or a mixture of mono- and di-alkali metal salts. The 5-guanylic acid solution may be obtained by chemical synthesis, microbiological fermentation, enzymatic degradation of ribonudeic acid with 51-phosphaiesterose or by extraction from natural sources. Guanosine may be phosphorylated with an organo-phosphorylating agent such as tetra-p - nitro - phenyl pyrophosphate, bis - p - nitrophenyl phosphochlorilate, diphenyl phosphochloridate, dibenyl, phosphochloridate, 2-cyanoethyl phosphate, tetra-chloro-pyrophosphate or phosphorous oxychloride, after the 21,31-positions of guanosine have been protected with an isopropylidene group, acyl group or a benzylidene group.  Then the protective group present in the phosphorylating agent is removed by a known method.  Subsequently the protective group at the 21,31-positions of guanosine is removed by a known method.  Then from the resulting solution 51-guanylic acid is precipitated in the form of free acid or monoalkali metal salt by standing the solution adjusted to pH 1.0-5.0 in a cool place after removing, if necessary, the phosphorylating agent remaining and compounds derived from the protective group of the agent.  The precipitate is collected, washed with organic solvent, dissolved in water, neutralized with an alkali metal hydroxide and cooled to give the dialkalimetal salt of 51-guanylic acid.  In a typical example, 21,31-O-isopropylidene guanosine is phosphorylated with bis - p - introphenylphosphate and di-p-tolylcarbodiimide, the protective group of the phosphorylating agent is removed with potassium hydroxide, the p-nitro-phenyl group and isopropylidene groups are removed by heating with concentrated hydrochloric acid at pH 2.5.  The mono-potassium salt of 51-guanylic acid is recovered as a precipitate by cooling the solution and is then dissolved in water, the resulting solution neutralised with potassium hydroxide and the dipotassium salt of 51-guanylic acid isolated. Similar examples are given for isolating the disodium salt.
Patent GB-988642-A (GB)
Title: Chemical process automatic regulating systems
IPC: B01D53/52
Filed: 1963-02-21
Abstract: 988, 642. Infra-red analysis. SOC.NATIONALE DES PETROLES D'AQUITAINE. Feb. 21, 1963 [Feb. 22, 1962], No. 7007/ 63. Heading G1A. [Also in Division G3] In a system for automatically controlling a sulphur recover-process involving the oxidation of H 2 S (see Division G3) the effluent gas is continuously sampled and tested by an infra absorption red analyser. Dual pumps 12 suck in equal volumes of air and effluent which are discharged in a first phase, directly to the analyser, and in a second phase through a catalytic oxidation furnace 15 where the H 2 S is oxidised to SO 2  before analysis. In the analyser to eliminate the effect of any CO 2  which may be present a filter 19 of pure CO 2  between the infra-red source 16 and test cell 17 absorbs in the 4.2 to 4.5 micron band, which overlaps a weak SO 2  absorption in the 3.9 to 4.5 micron band. SO 2  is estimated in the first measurement since it has a high absorption in the 7-9. 5 micron band and the weak effect of H 2 S in the 7-8. 5 micron band may be neglected to an accuracy of 0.3%. During the second measurement, the increase in SO 2  due to oxidation of H 2 S in furnace 15 represents the H 2 S measurement. These measurements appear as D.C. output signals from receiver 18 and are fed-through amplifier 22 to the recorder, IV. The recorder drives a synchro transmitter supplying signals to the automatic control system.
Patent GB-1397534-A (GB)
Title: Insulated electric cables
IPC: H01B13/22
Filed: 1971-03-17
Abstract: 1397534 Manufacturing electric cables DELTA ENFIELD CABLES Ltd 7 June 1972 [17 March 1971 31 Aug 1971 9 Dee 1971] 7115/71 40620/71 and 57311/71 Heading H1A An insulated cable core 26 has applied thereto a concentric neutral conductor layer 25 which is initially in the form of a flat insulated strip 25 of flexible insulating material such as ethylene propylene rubber or polyvinyl chloride or butyl rubber at least partly enclosing a planar array of wires 11. A comb device 19 (see Fig. 3, not shown) maintains wires 11 at constant spacing, which wires have a wave-form shape imparted thereto by means of a wave forming unit 14, Fig. 2, wherein, as wires 11 pass between rollers 15, teeth 16 and associated rubber or steel pads 18 impress thereon a wave of predetermined pitch and amplitude. The insulation is extruded over the planar array by an extruder 24. Fig. 5 (not shown) shows how an insulating layer may be applied by replacing extruder 24 by two pairs of strip forming rollers (28), (29) and applying under and over layers of protective material to the wire array 11 and heating to seal the composite strip. In Fig. 6 (not shown) a trimming device for one edge of strip 25 is shown using a tensioned wire and pulley arrangement in the manner of a cheese cutter, in order to facilitate the bonding of the strip around the cable core. The strip of insulating material may include a backing strip of non-woven or woven fabric.
Patent GB-939310-A (GB)
Title: Improvements in or relating to fatigue testing machines
Inventor: MELEKA ABDOU
IPC: G01N3/32
Filed: 1959-03-02
Abstract: 939,310. Testing physical qualities of materials. BRITISH IRON & STEEL RESEARCH ASSOCIATION. March 25, 1960 [March 2, 1959], No. 7134/59. Class 106 (2). A specimen 6 is stressed by means of a fixed weight or spring load 9 acting through a lever arm 4 and a varying stress is applied by an electromagnetic vibrator 16 also acting on the arm 4. The stress at any moment is indicated on an oscilloscope 39, being measured by a ring-type load cell 23, and the strain, measured by an extensometer 35, is recorded on a recorder 37. The range of frequencies of the vibrations may be from 200-3000 cycles per minute depending on the type of vibrator used. The machine may be adapted for compressive tests.
Patent GB-148598-A (GB)
Title: Improvements in the method of jointing or binding together metallic and other plates
IPC: F16B5/00
Filed: 1919-03-24
Abstract: 148,598. Taylor, C. H. March 24, 1919. Sides; floors.-In jointing metallic or other plates, particularly those forming the sides and floors of colliery tubs, the overlapping plates axe slit and the portions a<2>, b<2> between the slits are bent so as to form openings through which a binding rod d is passed. The adjacent portions are bent inwards and outwards alternately, or certain of the portions are bent inwards, only leaving the other portions flat or only slightly bent outwards. Reference has been directed by the Comptroller to Specification 3708/05, [Class 20, Buildings &c.].
Patent GB-1501832-A (GB)
Title: Disc mill for pebbles gravel or like materials
IPC: B02C7/14
Filed: 1976-02-24
Abstract: 1501832 Disc mills T POZZATO M POZZATO and A POZZATO 24 Feb 1976 [20 March 1975] 07284/76 Heading B2A A mill comprises a first disc or crusher plate 13 mounted on a support structure 1 for rotation about an axis perpendicular to the disc, a second opposed disc 32 secured to one end of a shaft 29 carried by the support structure and angularly - adjustable relative to the rotational axis of the first disc means via a pulley 3c to drive one of the discs, including a cylinder 9 coaxial with the first disc and surrounding part of the shaft 29 at its upper end. An inner sleeve 15 forms at one end of the cylinder 9 an annular chamber 16 which is closed by a flange 3a at the end remote from the second disc. An annular cross-section piston assembly 17 is rotatably and axially slidable in the cylinder 9 and extends into the annular chamber 16. The piston assembly 17 includes a member 18 having a part-spherical socket 27 with a central opening through which the shaft extends. The shaft 29 has an enlarged partspherical head 29a engaged in a bush 28 in the socket, with an annular groove 44 around it. The crusher disc 32 is fixed to a plate 30 which is in turn secured to a flat upper wall 29b and the head 29a. A first lubricant conduit 46 is formed in the annular piston assembly communicating with the annular-chamber 21 and the annular groove in the part spherical head, and a second lubricant conduit in the shaft communicating with the annular groove and a reservoir of lubricant 42. The reservoir is pressurised to urge the piston assembly carrying the second disc towards the first disc and position the disc a selected distance apart. A plate 12 can be adjusted up or down by screws 11, and the disc 13 is secured to the plate 12. The lower end of the shaft can be adjusted by adjustment of a pivotable bearing 33 over a range determined by the length of slots 37, 38. The discs are relieved when tramp material enters the gap by springs 25 in addition to yielding in the pressurised lubricant supply.
Patent GB-459988-A (GB)
Title: Improvements in or relating to ship's screw propellers
IPC: B63H1/12
Filed: 1936-03-11
Abstract: 459,988. Screw propellers. GARAVELLI, G., La Spezia, Italy. March 11, 1936, No. 7322. Convention date, March 11, 1935. [Class 114] In screw propellers provided with blades having variable pitch radially and axially, the pitch increases axially in parabolic progression at an average ratio of 1-2À50 from the forward edge AB to the trailing edge AC and radially it decreases at the average ratio of 1-0À60 from the tip arc BC toward the axis A. A straight generatrix is used and is forwardly inclined at the leading edge and rearwardly inclined at the trailing edge. The blades are supported upon a hollow boss of spherical shape and of a diameter equal to 0À40 of the complete propeller diameter. The hollow shell has flanges 9, 10 which are supported between flanges 1 and 8 respectively upon members which are keyed by keys 2 and 6 to the propeller shaft 3. The boss is completed by a nosing 11. If desired, the inner surface of the boss is provided with stiffening ribs. The forward keyed member may be integral with the boss shell.
Patent GB-181121-A (GB)
Title: Improvements relating to adjustable supports for lamps and the like
IPC: F21V21/26
Filed: 1921-03-07
Abstract: 181,121. Thomas, A. J. March 7, 1921. Supporting.-An adjustable electric-lamp support comprises a link 3<A>, 3<B>, mounted on a pivot provided upon an angularly adjustable standard 1, Which carries a lamp-supporting arm 5 at one end and a counterweighted arm 6 at the other end, an extension of each of the arms being connected to a second link 2A, 2<B> concentric with the first, by cross arms 4, 7 respectively, the parts being so proportioned that the movement of the counterweight 8 is proportional to that of the lamp 9 so that the latter is balanced in all positions. The weight 8 may be adjustable and an additional adjustable weight 10 may be provided on the link 3A for setting the device for use with different shades. The links may be tubular and the pivots so constructed that the wiring for the lamp may pass up internally from the swivelling standard to the end of the lamp-supporting arm.
Patent GB-563918-A (GB)
Title: Improvements in or relating to exhaust gas turbo-chargers
IPC: F02C6/12
Filed: 1943-05-10
Abstract: 563,918. Elastic fluid turbines. AKT.-GES. BROWN, BOVERI, & CIE. May 10, 1943, No. 7395. Convention date, May 2, 1942. [Classes 110 (i) and 110 (iii)] In an exhaust-gas driven turbo-blower, means to prevent the air being compressed from being heated by the hot gases comprises an air space 8 between the turbine and compressor rotors 4, 5 respectively, and insulating material 18 between the inner casing walls 16, 17. Air from blades 9 flows between diffusor blades 10 into a volute chamber 11, and thence to a reciprocating internal-combustion engine, furnace of a steam producer, the combustion chamber of a gas turbine, or to be used in chemical or metallurgical processes. The turbine gases flow inwards from a chamber 12, but the flow may be reversed. A spring ring 6 is provided on the rotor 4.
Patent GB-831400-A (GB)
Title: Unsaturated sultams
IPC: C07D275/02
Filed: 1958-03-07
Abstract: The invention comprises sultams of the general formula <FORM:0831400/IV (b)/1> in which R is an aryl, amino-substituted aryl or acylamino-substituted aryl radical and R1 is an unsubstituted unsaturated alkylene radical which may bear alkyl side chains or which may form a portion of an external carbocyclic ring configuration (preferably the alkylene radical contains two unsaturated olefinic bonds and four carbon atoms in the sultam ring), and the preparation thereof by heating an unsaturated sultane of the general formula <FORM:0831400/IV (b)/2> with a primary amine RNH2 at a temperature sufficient to split off water and subsequently recovering the sultam formed.